The invention discloses a water purification apparatus. The water purification apparatus comprises: a shell, wherein a filter core accommodating cavity is formed in the shell, and the shell is provided with a mounting jack communicating with the filter core accommodating cavity; a filter core structure, which is arranged in the filter core accommodating cavity through the mounting jack; and a filter core pressing piece, which is arranged at the mounting jack and comprises a pressing piece body and a connecting part connected with the pressing piece body, wherein the connecting part is movablyconnected with the shell so as to drive the pressing piece body to open or at least partially cover the mounting jack. With such a technical scheme, the filter core pressing piece can be movably opened or closed relative to the mounting jack, so a user can conveniently assemble and disassemble the filter core structure, and thus, the convenience of cleaning or replacing the filter core structure by a user is improved.